Home / 8,685.48-13,031.88-2,762.88

Finding the Fourth Proportional to 8,685.48, 13,031.88 and 2,762.88

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Solution

The fourth proportional to 8,685.48, 13,031.88 and 2,762.88 is: 4,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.48 : 13,031.88 = 2,762.88 : x
  2. Step 2: Convert to fraction form
    8,685.48/13,031.88 = 2,762.88/x
  3. Step 3: Cross multiply
    8,685.48x = 13,031.88 × 2,762.88
  4. Step 4: Simplify right side
    8,685.48x = 36,005,520.61
  5. Step 5: Solve for x
    x = 36,005,520.61/8,685.48
  6. Step 6: Final answer
    x = 4,145.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.